function newWin (url,w,h) {
	leftPos = 0;
	if (screen) {
		leftPos = (screen.width / 2) - (w / 2);
		topPos = (screen.height / 2) - (h / 2);
	}

	window.open(url,"newWin","width="+w+",height="+h+",directories=no,location=no,menubar=no,scrollbars=yes,status=no,toolbar=no,resizable=yes,left="+leftPos+",top="+topPos);
}